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Australasian sequestrate fungi 18: Solioccasus polychromus gen. & sp. nov., a richly colored, tropical to subtropical, hypogeous fungus

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https://ir.library.oregonstate.edu/concern/articles/ns0646417

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  • Solioccasus polychromus gen. & sp. nov., the most brightly colored hypogeous fungus known, is described from Papua New Guinea and tropical northern Australia south into subtropical forests along the Queensland coast and coastal mountains to near Brisbane. Phylogenetic analysis of molecular data places it as a sister genus to Bothia in the Boletineae, a clade of predominantly ectomycorrhizal boletes. Ectomycorrhizal trees, such as members of the Myrtaceae (Eucalyptus, Corymbia, Lophostemon, Melaleuca spp.) and Allocasuarina littoralis, were present usually in mixture or in some cases dominant, so we infer some or all of them to be among the ectomycorrhizal hosts of S. polychromus.
  • Cover image—Solioccasus polychromus, an Australasian, tropical to subtropical, hypogeous member of the Boletineae. Upper image by Roy Halling, immature specimens, lower image by Michael Castellano, mature specimens. See article by Trappe et al. in this issue.
  • Keywords: ITS, Boletineae, ectomycorrhizae, rhizomorphs, Bothia, Boletales, Basidiomycota, LSU, tef1, DNA, EF1-α,
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  • Trappe, J. M., Castellano, M. A., Halling, R. E., Osmundson, T. W., Binder, M., Fechner, N., & Malajczuk, N. (2013). Australasian sequestrate fungi. 18: Solioccasus polychromus gen. & sp. nov., a richly colored, tropical to subtropical, hypogeous fungus. Mycologia. 105(4), 2013, pp. 888-­895. DOI: 10.3852/12-046
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  • 105
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  • 4
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  • We thank the Australian Centre for International Agricultural Research for financially supporting projects 8736 and 9116 for N. Malajczuk and Australian Biological Resources Study for its grant to T. Lebel, J. Trappe and R. Halling (Revision of Australian truffle-like genera in the order Boletales, Basidiomycota). U.S. National Science Foundation supported travel by Trappe and Castellano through Grant DEB 9007186. The U.S. Forest Service, Pacific Northwest Research Station, contributed laboratory and office facilities in support of Trappe’s participation in the research. Roy Halling acknowledges support from National Science Foundation grant DEB 1020421 and National Geographic Society Committee for Research and Exploration grant 8457-08. The Queensland Parks and Wildlife Service provided accommodation and orientation on Fraser Island.
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